From a1ab67883d8ab1022c36e686ed20f39fe00506c8 Mon Sep 17 00:00:00 2001 From: Arun Kumar Date: Tue, 16 Jul 2024 13:23:34 +0530 Subject: hw/nvme: support CTRATT.MEM Indicate that 'MDTS and Size Limits Exclude Metadata (MEM)' in the Controller Attributes (CTRATT) I/O Command Set Independent Identify Controller Data Structure. Signed-off-by: Arun Kumar Reviewed-by: Klaus Jensen [k.jensen: updated commit message] Signed-off-by: Klaus Jensen --- hw/nvme/ctrl.c | 19 ++++++++++++++----- include/block/nvme.h | 3 +++ 2 files changed, 17 insertions(+), 5 deletions(-) diff --git a/hw/nvme/ctrl.c b/hw/nvme/ctrl.c index a720dbc354..050cb63e33 100644 --- a/hw/nvme/ctrl.c +++ b/hw/nvme/ctrl.c @@ -2653,6 +2653,7 @@ static uint16_t nvme_verify(NvmeCtrl *n, NvmeRequest *req) uint64_t slba = le64_to_cpu(rw->slba); uint32_t nlb = le16_to_cpu(rw->nlb) + 1; size_t len = nvme_l2b(ns, nlb); + size_t data_len = len; int64_t offset = nvme_l2b(ns, slba); uint8_t prinfo = NVME_RW_PRINFO(le16_to_cpu(rw->control)); uint32_t reftag = le32_to_cpu(rw->reftag); @@ -2672,7 +2673,11 @@ static uint16_t nvme_verify(NvmeCtrl *n, NvmeRequest *req) } } - if (len > n->page_size << n->params.vsl) { + if (nvme_ns_ext(ns) && !(NVME_ID_CTRL_CTRATT_MEM(n->id_ctrl.ctratt))) { + data_len += nvme_m2b(ns, nlb); + } + + if (data_len > (n->page_size << n->params.vsl)) { return NVME_INVALID_FIELD | NVME_DNR; } @@ -3413,7 +3418,11 @@ static uint16_t nvme_compare(NvmeCtrl *n, NvmeRequest *req) len += nvme_m2b(ns, nlb); } - status = nvme_check_mdts(n, len); + if (NVME_ID_CTRL_CTRATT_MEM(n->id_ctrl.ctratt)) { + status = nvme_check_mdts(n, data_len); + } else { + status = nvme_check_mdts(n, len); + } if (status) { return status; } @@ -3590,7 +3599,7 @@ static uint16_t nvme_read(NvmeCtrl *n, NvmeRequest *req) BlockBackend *blk = ns->blkconf.blk; uint16_t status; - if (nvme_ns_ext(ns)) { + if (nvme_ns_ext(ns) && !(NVME_ID_CTRL_CTRATT_MEM(n->id_ctrl.ctratt))) { mapped_size += nvme_m2b(ns, nlb); if (NVME_ID_NS_DPS_TYPE(ns->id_ns.dps)) { @@ -3702,7 +3711,7 @@ static uint16_t nvme_do_write(NvmeCtrl *n, NvmeRequest *req, bool append, BlockBackend *blk = ns->blkconf.blk; uint16_t status; - if (nvme_ns_ext(ns)) { + if (nvme_ns_ext(ns) && !(NVME_ID_CTRL_CTRATT_MEM(n->id_ctrl.ctratt))) { mapped_size += nvme_m2b(ns, nlb); if (NVME_ID_NS_DPS_TYPE(ns->id_ns.dps)) { @@ -8483,7 +8492,7 @@ static void nvme_init_ctrl(NvmeCtrl *n, PCIDevice *pci_dev) id->cntlid = cpu_to_le16(n->cntlid); id->oaes = cpu_to_le32(NVME_OAES_NS_ATTR); - ctratt = NVME_CTRATT_ELBAS; + ctratt = NVME_CTRATT_ELBAS | NVME_CTRATT_MEM; id->rab = 6; diff --git a/include/block/nvme.h b/include/block/nvme.h index 5298bc4a28..a37be0d0da 100644 --- a/include/block/nvme.h +++ b/include/block/nvme.h @@ -1182,6 +1182,7 @@ enum NvmeIdCtrlOaes { enum NvmeIdCtrlCtratt { NVME_CTRATT_ENDGRPS = 1 << 4, NVME_CTRATT_ELBAS = 1 << 15, + NVME_CTRATT_MEM = 1 << 16, NVME_CTRATT_FDPS = 1 << 19, }; @@ -1285,6 +1286,8 @@ enum NvmeNsAttachmentOperation { #define NVME_ERR_REC_TLER(err_rec) (err_rec & 0xffff) #define NVME_ERR_REC_DULBE(err_rec) (err_rec & 0x10000) +#define NVME_ID_CTRL_CTRATT_MEM(ctratt) (ctratt & NVME_CTRATT_MEM) + enum NvmeFeatureIds { NVME_ARBITRATION = 0x1, NVME_POWER_MANAGEMENT = 0x2, -- cgit v1.2.3-70-g09d2